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Secondary memory to store error correction information

a technology of error correction and secondary memory, applied in the field of nonvolatile memory, can solve problems such as the increase in the longevity of devices and the relationship between error correction/detection

Active Publication Date: 2013-12-12
MICRON TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a method for improving the reliability and longevity of non-volatile memory devices, such as Flash memory, by using a secondary memory to store error correction information related to the primary memory. The secondary memory can include information related to error detection, error correction, wear-leveling, and other aspects that affect the device's reliability and performance. The method involves writing data to the secondary memory and then reading it back to the primary memory to verify if the data was correctly written. This process helps to ensure the reliability and longevity of the non-volatile memory devices.

Problems solved by technology

As Flash memories continue to increase in storage capacity, and as storage cell geometries decrease, issues related to error correction / detection and device longevity may become more prominent.

Method used

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  • Secondary memory to store error correction information
  • Secondary memory to store error correction information
  • Secondary memory to store error correction information

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Embodiment Construction

[0013]Reference is made in the following detailed description to the accompanying drawings, which form a part hereof, wherein like numerals may designate like parts throughout to indicate corresponding or analogous elements. It will be appreciated that for simplicity and / or clarity of illustration, elements illustrated in the figures have not necessarily been drawn to scale. For example, the dimensions of some of the elements may be exaggerated relative to other elements for clarity. Further, it is to be understood that other embodiments may be utilized. Furthermore, structural or logical changes may be made without departing from the scope of claimed subject matter. It should also be noted that directions or references, for example, up, down, top, bottom, and so on, may be used to facilitate discussion of the drawings and are not intended to restrict the application of claimed subject matter. Therefore, the following detailed description is not to be taken to limit the scope of cla...

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Abstract

A system and method are disclosed in which a first non-volatile memory includes blocks that store data, and a second memory that stores error correction information related to the blocks storing the data. The first memory and the second memory are of different types.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. patent application Ser. No. 12 / 346,015, filed Dec. 30, 2008 which is incorporated in its entirety by reference herein.BACKGROUND[0002]1. Field of the Application[0003]Subject matter disclosed herein may relate to non-volatile memory, and may relate in particular to improving the reliability or extending the useful life of a non-volatile memory device, for example.[0004]2. Description of the Related Art[0005]Non-volatile memory devices, including Flash memory devices, may be found in a wide range of electronic devices. In particular, Flash memory devices may be used in computers, digital cameras, cellular telephones, personal digital assistants, etc. Flash memories may be embedded in the devices, or may be incorporated into portable solid-state storage devices. As Flash memories continue to increase in storage capacity, and as storage cell geometries decrease, issues related to error correction / de...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G11C29/42
CPCG11C29/42G11C2029/0411G06F11/1048
Inventor CAMPARDO, GIOVANNICORNO, STEFANOVANALLI, GIAN PIETROSCOGNAMIGLIO, MANUELACARACCIO, DANILOTIZIANI, FEDERICOMAGNI, MASSIMILIANOGHILARDELLI, ANDREA
Owner MICRON TECH INC